Namespace: CubicBezier

A collection of functions to handle a cubic bezier represented with SimpleSegment.

Functions

bounds

▸ bounds(arg): [vec2, vec2]

Calculates the rect of this Bezier curve.

Parameters

Name	Type
`arg`	`SimpleSegmentC`

Returns

[vec2, vec2]

Defined in

CubicBezier.ts:61open in new window

derivative

▸ derivative(bezier, loc): vec2

Calculates the curve tangent at the specified t value. Note that this yields a not-normalized vector.

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`loc`	`SegmentLocation`

Returns

vec2

Defined in

CubicBezier.ts:118open in new window

divideAtTimes

▸ divideAtTimes(segment, times): VertexC[]

Parameters

Name	Type
`segment`	`SimpleSegmentC`
`times`	`Iterable`<`number`>

Returns

VertexC[]

Defined in

CubicBezier.ts:195open in new window

fromQuadraticBezier

▸ fromQuadraticBezier(start, control, point): SegmentC

Parameters

Name	Type
`start`	`vec2`
`control`	`vec2`
`point`	`vec2`

Returns

SegmentC

Defined in

CubicBezier.ts:39open in new window

isStraight

▸ isStraight(bezier): boolean

Parameters

Name	Type
`bezier`	`SimpleSegmentC`

Returns

boolean

Defined in

CubicBezier.ts:225open in new window

isZero

▸ isZero(bezier): boolean

Parameters

Name	Type
`bezier`	`SimpleSegmentC`

Returns

boolean

Defined in

CubicBezier.ts:212open in new window

length

▸ length(arg): number

Calculates the length of the Bezier curve. Length is calculated using numerical approximation, specifically the Legendre-Gauss quadrature algorithm.

Parameters

Name	Type
`arg`	`SimpleSegmentC`

Returns

number

Defined in

CubicBezier.ts:53open in new window

normal

▸ normal(bezier, loc): vec2

Calculates the curve normal at the specified t value. Note that this yields a normalized vector.

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`loc`	`SegmentLocation`

Returns

vec2

Defined in

CubicBezier.ts:139open in new window

of

▸ of(start, control1, control2, point): Object

Parameters

Name	Type
`start`	`vec2`
`control1`	`vec2`
`control2`	`vec2`
`point`	`vec2`

Returns

Object

Name	Type
`args`	`vec2`[]
`command`	`string`
`point`	`vec2`
`start`	`vec2`

Defined in

CubicBezier.ts:20open in new window

offset

▸ offset(bezier, distance): Path

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`distance`	`number`

Returns

Path

Defined in

CubicBezier.ts:261open in new window

point

▸ point(bezier, loc): vec2

Calculates the point on the curve at the specified t value.

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`loc`	`SegmentLocation`

Returns

vec2

Defined in

CubicBezier.ts:93open in new window

project

▸ project(bezier, origin): Object

Finds the on-curve point closest to the specific off-curve point

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`origin`	`vec2`

Returns

Object

Name	Type
`distance?`	`number`
`position`	`vec2`
`t?`	`number`

Defined in

CubicBezier.ts:146open in new window

tangent

▸ tangent(bezier, loc): vec2

Calculates the curve tangent at the specified t value. Unlike derivative, this yields a normalized vector.

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`loc`	`SegmentLocation`

Returns

vec2

Defined in

CubicBezier.ts:132open in new window

toPaperBezier

▸ toPaperBezier(arg): Curve

Parameters

Name	Type
`arg`	`SimpleSegmentC`

Returns

Curve

Defined in

CubicBezier.ts:24open in new window

toTime

▸ toTime(bezier, loc): number

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`loc`	`SegmentLocation`

Returns

number

Defined in

CubicBezier.ts:71open in new window

trim

▸ trim(bezier, start, end): SegmentC

Parameters

Name	Type
`bezier`	`SimpleSegmentC`
`start`	`SegmentLocation`
`end`	`SegmentLocation`

Returns

SegmentC

Defined in

CubicBezier.ts:155open in new window